In today’s rapidly expanding LED lighting market, ensuring product performance, efficiency, and reliability is more important than ever. This is where LM 79 testing becomes essential. LM 79 is a globally recognized standard published by the Illuminating Engineering Society (IES) for measuring the electrical and photometric performance of solid-state lighting (SSL) products such as LED lamps, LED luminaires, and integrated LED systems. If you are a manufacturer, importer, or lighting brand planning to enter the Indian or global market, choosing the right LM 79 testing lab and a reliable LM 79 testing consultant is crucial for compliance, certification, and product credibility.

What is LM 79 Testing?

LM 79 testing refers to a precise set of procedures that evaluate the performance characteristics of LED lighting products. Unlike traditional lighting technologies, LED performance varies significantly based on design, thermal management, and driver compatibility. LM 79 provides a uniform testing structure to measure:

• Luminous Flux (Total Light Output)
  
  

• Luminous Intensity Distribution
  
  

• Chromaticity (Color Characteristics)
  
  

• Correlated Color Temperature (CCT)
  
  

• Color Rendering Index (CRI)
  
  

• Input Power & Efficacy (Lumens per Watt)
  
  

• Electrical Characteristics
  
  

• Power Factor & Harmonics
  
  

These measurements help manufacturers prove product quality, meet buyer requirements, achieve certifications like BIS, BEE, CE, UL, and gain trust in domestic as well as international markets.

Why is LM 79 Testing Important?

LM 79 testing is considered the backbone of LED lighting validation. Here’s why:

1. Performance Verification

It accurately verifies how your LED product performs under standard testing conditions. Manufacturers use this data to optimize product design or highlight features for marketing.

2. Compliance for Certifications

Bureau of Energy Efficiency (BEE), BIS CRS, Energy Star, and international certification bodies require LM 79 reports. Without LM 79, your lighting product may not be approved for sale.

3. Enhances Credibility

A product backed by LM 79 testing from an accredited lab builds customer confidence. Distributors, government projects, and EPC contractors demand LM 79 reports before procurement.

4. Reduces Product Failure Risks

Through LM 79 evaluation, performance-related issues like color shift, low efficacy, or poor power factor are identified early, saving manufacturers from costly recalls.

What Does an LM 79 Testing Lab Do?

A certified LM 79 testing lab performs all required photometric and electrical tests as per IES LM 79 standards. These labs are equipped with:

• Goniophotometer Systems
  Used for luminous intensity and distribution measurement.
  
  

• Integrating Sphere Photometers
  Accurate measurement of total luminous flux and CCT.
  
  

• High-Precision Spectroradiometers
  For chromaticity, CRI, and color consistency evaluation.
  
  

• Thermal Chambers
  Assess product performance under varying temperature conditions.
  
  

• Power Analyzers
  Essential for measuring input power, PF, harmonics, and efficacy.
  
  

When selecting a lab, always ensure it is NABL-accredited and follows IES guidelines strictly. Accredited labs guarantee accuracy, reliability, and acceptance of reports across government and private sectors.

Why You Need an LM 79 Testing Consultant

An experienced LM 79 testing consultant ensures your product is completely ready for testing and passes without unnecessary delays or failures. Their role includes:

1. Pre-Testing Assistance

Consultants review your product design, driver specifications, thermal management, and LED quality to ensure they meet LM 79 parameters.

2. Documentation & Certification

They assist in organizing all technical documents required for BIS, BEE, and international certifications where LM 79 is mandatory.

3. Choosing the Right Testing Lab

Consultants help select the best NABL-accredited LM 79 testing lab suited for your product type and project timeline.

4. Reducing Time & Cost

With expert guidance, manufacturers avoid repeated testing, save expenses, and ensure faster report approval.

5. Interpretation of Test Results

Consultants analyze test data, identify improvement areas, and guide product upgrades if any parameter falls short.

Who Needs LM 79 Testing?

LM 79 testing is essential for:

• LED Bulb manufacturers
  
  

• LED Tube light makers
  
  

• LED Driver companies
  
  

• LED Street Light producers
  
  

• LED Flood Light manufacturers
  
  

• Indoor and outdoor luminaire brands
  
  

• Smart lighting and architectural lighting companies
  
  

• Importers and wholesale distributors
  
  

• Government tender participants
  
  

If you operate in the LED industry, LM 79 testing is not optional—it’s a mandatory quality and compliance requirement.

Benefits of LM 79 Testing for LED Manufacturers

• Helps meet BIS, BEE, CE, UL, Energy Star, and OEM requirements
  
  

• Increases market acceptance and buyer trust
  
  

• Improves product quality and consistency
  
  

• Reduces warranty claims and failures
  
  

• Helps in participating in government tenders
  
  

• Enhances brand credibility and technical accuracy
  
  

How to Choose the Best LM 79 Testing Consultant and Lab

When selecting an LM 79 testing consultant or lab, consider:

• NABL accreditation
  
  

• Experience in LED photometric testing
  
  

• Availability of advanced equipment like Type-C goniophotometers
  
  

• Fast report generation
  
  

• BIS/BEE approval support
  
  

• Transparent pricing
  
  

• Technical guidance and product review
  
  

The right consultant and lab can significantly improve the efficiency and accuracy of your testing process.